<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="文章标题" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入文章标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="文章状态" prop="status">
        <el-select v-model="queryParams.status" placeholder="请选择文章状态" clearable>
          <el-option label="待审核" value="待审核" />
          <el-option label="已审核" value="已审核" />
          <el-option label="未通过" value="未通过" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['article:article:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['article:article:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['article:article:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['article:article:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="articleList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="文章ID" align="center" prop="articleId" />
      <el-table-column label="文章标题" align="center" prop="title" />
      <el-table-column label="文章内容" align="center" prop="content">
        <template slot-scope="scope">
          <span>{{ scope.row.content && scope.row.content.length > 5 ? scope.row.content.substring(0, 5) + '...' : scope.row.content }}</span>
        </template>
      </el-table-column>
      <el-table-column label="文章状态" align="center" prop="status">
        <template slot-scope="scope">
          <el-tag :type="scope.row.status === '已审核' ? 'success' : scope.row.status === '未通过' ? 'danger' : 'warning'">
            {{ scope.row.status }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-view"
            @click="handleView(scope.row)"
            v-hasPermi="['article:article:query']"
          >查看</el-button>
          <el-button
            size="mini"
            type="success"
            icon="el-icon-check"
            @click="handleApprove(scope.row)"
            :loading="processingId === scope.row.articleId"
            :disabled="scope.row.status !== '待审核' || processingId === scope.row.articleId"
            v-hasPermi="['article:article:edit']"
          >通过</el-button>
          <el-button
            size="mini"
            type="danger"
            icon="el-icon-close"
            @click="handleReject(scope.row)"
            :loading="processingId === scope.row.articleId"
            :disabled="scope.row.status !== '待审核' || processingId === scope.row.articleId"
            v-hasPermi="['article:article:edit']"
          >不通过</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改文章管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="发表文章的用户ID" prop="userId">
          <el-input v-model="form.userId" placeholder="请输入发表文章的用户ID" />
        </el-form-item>
        <el-form-item label="文章所属分类ID" prop="categoryId">
          <el-input v-model="form.categoryId" placeholder="请输入文章所属分类ID" />
        </el-form-item>
        <el-form-item label="文章标题" prop="title">
          <el-input v-model="form.title" placeholder="请输入文章标题" />
        </el-form-item>
        <el-form-item label="文章内容">
          <editor v-model="form.content" :min-height="192"/>
        </el-form-item>
        <el-form-item label="文章点击量" prop="clickCount">
          <el-input v-model="form.clickCount" placeholder="请输入文章点击量" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 查看文章对话框 -->
    <el-dialog title="查看文章" :visible.sync="viewOpen" width="800px" append-to-body>
      <el-form ref="viewForm" :model="viewForm" label-width="80px">
        <el-form-item label="文章标题">
          <span>{{ viewForm.title }}</span>
        </el-form-item>
        <el-form-item label="文章内容">
          <div class="article-content ql-editor" v-html="viewForm.content"></div>
        </el-form-item>
        <el-form-item label="作者">
          <span>{{ viewForm.userId }}</span>
        </el-form-item>
        <el-form-item label="分类">
          <span>{{ viewForm.categoryId }}</span>
        </el-form-item>
        <el-form-item label="点击量">
          <span>{{ viewForm.clickCount }}</span>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="viewOpen = false">关 闭</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listArticle, getArticle, delArticle, addArticle, updateArticle } from "@/api/article/article"

export default {
  name: "ArticleStatus",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 文章管理表格数据
      articleList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        title: null,
        status: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        userId: [
          { required: true, message: "发表文章的用户ID不能为空", trigger: "blur" }
        ],
        categoryId: [
          { required: true, message: "文章所属分类ID不能为空", trigger: "blur" }
        ],
        title: [
          { required: true, message: "文章标题不能为空", trigger: "blur" }
        ],
        content: [
          { required: true, message: "文章内容不能为空", trigger: "blur" }
        ],
      },
      // 处理中的文章ID
      processingId: null,
      // 查看对话框
      viewOpen: false,
      // 查看表单
      viewForm: {}
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询文章管理列表 */
    getList() {
      this.loading = true
      listArticle(this.queryParams).then(response => {
        this.articleList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        articleId: null,
        userId: null,
        categoryId: null,
        title: null,
        content: null,
        clickCount: null,
        createTime: null,
        updateTime: null,
        status: null
      }
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.articleId)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.title = "添加文章管理"
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const articleId = row.articleId || this.ids
      getArticle(articleId).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改文章管理"
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.articleId != null) {
            updateArticle(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addArticle(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const articleIds = row.articleId || this.ids
      this.$modal.confirm('是否确认删除文章管理编号为"' + articleIds + '"的数据项？').then(function() {
        return delArticle(articleIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('article/article/export', {
        ...this.queryParams
      }, `article_${new Date().getTime()}.xlsx`)
    },
    /** 通过按钮操作 */
    handleApprove(row) {
      this.$modal.confirm('是否确认通过该文章？').then(() => {
        const data = {
          articleId: row.articleId,
          status: '已审核'
        }
        this.processingId = row.articleId
        return updateArticle(data)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("审核通过成功")
        this.processingId = null
      }).catch(() => {
        this.processingId = null
      })
    },
    /** 不通过按钮操作 */
    handleReject(row) {
      this.$modal.confirm('是否确认拒绝该文章？').then(() => {
        const data = {
          articleId: row.articleId,
          status: '未通过'
        }
        this.processingId = row.articleId
        return updateArticle(data)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("审核拒绝成功")
        this.processingId = null
      }).catch(() => {
        this.processingId = null
      })
    },
    /** 查看按钮操作 */
    handleView(row) {
      this.viewForm = row
      this.viewOpen = true
    },
  }
}
</script>

<style scoped>
.article-content {
  font-size: 16px;
  color: #333;
  line-height: 1.8;
  margin-bottom: 8px;
  background: #fcfcfc;
  border-radius: 6px;
  padding: 18px 12px;
  min-height: 120px;
}
</style>
